Add custom Properties to an array while in ForEach-Loop

Hi Guys,

I´m trying to add a new column to an array an fill it with variables in a ForEach Loop.

I tried the following:

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$CSV = Import-Csv -Path "H:\LAPTOP.csv" -Delimiter ";"

$descriptions = @()

foreach ($entry in $csv)
{
    $Laptopname = $($entry.Laptopname)
    $Username = $($entry.Username)  


    $PC = Get-ADObject -filter { (displayname -like $Username) } -Properties givenname, sn, description

    $descriptions += $PC.description
   
}

    $csv | Add-Member -MemberType NoteProperty -Name description -value $descriptions

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My target is to add the "description" field from "$PC.description" to the correct field in $csv description. But it allways outputs the whole array in every description field.

So how can i add a new column to my array and fill it in the foreach loop?